Poultry brooder



Eeb. 12, 1935. I P. M. FORSTER 1,991,053

v POULTRY BROODER Filed March 7, 1933 INVENTOR. PM?

/ BY @wmsmd/ W fjilu ATTORN -YS.

Patented Feb. 12, 1935 em-m STAT-ES P TENT, mm: .{11

139 053 v roUL'raY naoonnaf f Percy M. Forster, Berkeley, Calif. Application March 7,1933, Serial No. esaeia Claims. (o1.-1i9;s2)r

'l 'hisinvention relates to a brooder hover for usein faising poultry. I v 4 v It isthe principal object of the present invention to provide a hover of the characterreferred 5 to whichgis; oflinexpensive,construction and which will evenly and properly distribute heated air from acentr-ally located source over a connoticed-that thehood is formed of twoirustm siderable area to be occupied by the chicks, H In carrying the. invention into practice, I prodea centralheating chamber in which heat may .he generated by any suitable type of burner. Qyerlying; this heating chamber is a irusto-conicalhoodgthebase-of which isopen and beneath which the chicks'may hover. u The zinterior of this head is divided into annular air passages opening at the base of the hood, so that the heat generated .inzthe heating chamber wlill be directed downwardly through these passages toward the ehicks :hovered therebeneath. By this'medium the heated air will be distributed over the entire a ea cor e b th hood- Oneiormywvhich':the invention may assume is exemplified i the followingdescription. and "illus U ated by way of example in thelaccompany- 26 gdrawing'inwhichr e e i v ,Eigufl is a central vertical seetionqthroughi a s over, constructed. in accordance with my inventiqn talgenonliheL-I fFig, 2.

EigH Z isagplansectiontaken on line 11-11 of Referring more particularlyrto theaccompanyindicates a breeder hover for use ing "drawing; 10 in raisingt poultry. This hover is constructedalt tir ly of sheet metalandjis consequently inexpensive to manufacture.

The-hover comprises a central cylindrical shell ,11 whichlencloses; a heating chamber 12,: The

lowerl endtof the shell -11 is flanged assat 14 to l'for nta base iorsupporting the hover inaproperfl ierectlposition, The base: so formed may; if

desir -embersecureditothe floor of the brooder or aybe'of such an area .and formation as to sup- ,port the hover without such fastening. The shell I 111k isprovided with a number of openings 11;; as illustrated. p p t [Arra ged Within the heating chamberillyis a burner; indicated at'i15 ,which may be oianysuit abletype. aware that I may use an electric burner or a burner which will operate on natural gas manu'factured gasorliquefied petroleum gas. However, there aretother types of burners and "fuels which may be employed with equal efficiency present hoverfi 1 4' It will "be noticed that the upper end of the shell is open-so that themeat generated fIwi thim-the heating chamberlZ mayireely rise anddiseharge upwardly from the heatingjchamber' l2. 1

overlying the shellill andtne heating chamber 12 and arrangedin concentric relation thereto is a frusto-conical hood l6.-Q'I'he basejof this hood 16is open while the upper end'of the hood is closed by an imperforate top platejl'l. It will'be sulatingair space between it; and the top plate l'lso as to ininimize heat losses by radiationfat thetop of the hood. The baflle'pl ateld tends to deflect the a heated air rising from the heating chamber 12 andto direct the same downwardly through the space'betweenthehood 1'6 and the shellll.

Reference being had particularly to F ig.

willbe noted that attits base the hood is formed with a depending annular :ilange 19, theflower edge of which is on a plane.spacedvertically from the plane on whichthe lower end of the shell'is disposed, in orderthatthe chicks mjay hover about the shell 11 beneathjthe hood." j 1 It will be noticedth'at the upper open end of the shell 11 is positioned'at adlstance below the top ofrthehood in order that the heated air arising from the heating chamber 12 may be directed r lytoward the space" which the hood 16 overlies. i l a In order that the heated air will distributed over this spaceand maintainan even temperature throughout the space occupied by the ch cks r provide a plurality of open-ended irust'o conical partitionmembers 20. These partition members 20 progressively decrease in dimensions from'the hood l6 to the cylindricalshell 11 so as to rare a plurality of "annular air passageways 21 between the hood and theshelll 11; The bases of thepartition members ZDjare disposed on the'sam'e planeas the base of the hoodg'and each partition member 2051s formed with a'circularor annular .fian'ge'22 which depend from the bases oilthe partition members the same as the flange 19 depends from the base of the hood 16. The upper ends of the partition members "20 termmate{at progressively increasing heights abovethe plane g-of the base of thehood;

asurroundingthe :shell -11 at aspaced distance therefrom is a partition 23 which intersects the innermost frusto-conical partition 20 at its upper end. The lower end of this partition 23 terminates a short distance above the plane of the bases of the partitions 20.

At a point substantially at the plane of the bases of the partitions 20 is a frusto-conical flange 24 which is fitted to the shell 11. This flange 24 tends to deflect heated air passing downwardly through the passageway 25 between the partition 23 and the shell 11 into the space between the shell 11 and the base of the innermost frustoconical partition 20.

The hood 16, the partition members 20 and 23 and the shell 11 are all rigidly interconnected and. fastened together to form a rigid and dura ble structure. I a a In operation a heater or burner of any preferred type is arranged in the shell just above its lower end and through an opening formed in an intermediate plate 26 arranged transversely in the shell 11'. If desired, the portion of the shell below the plate 26 may be in'the form of legs or I and that the chicks hovered stand althoughin the present instance I have shown it as a continuation of the shell 11 proper.

As heat is generated in the heating chamber 12, heated air will rise toward the top ofthe hood and will be deflected downwardly toward the open upp r ends of the'passageways 21 and 25. It will pass downwardly through these passageways and be discharged at their lower ends in a perfectly straight downward direction toward the'chicks hovered therebeneath. i

It is obvious that by this means the heated air will be distributed throughout the entire area between. the base of the hood 16 and the shell 11, V beneath the hood Willall be subjected to the sa e even and proper temperature. f

It is desired to call attention tothe fact that when the partitions 20 and 23 become heated, they will radiate heat and consequently increase the efficiency of the. hover.

It is obvious from the foregoing that I have provided an efficient hover for use in raising poultry and that the same will be inexpensive to manufacture andwill be economical to operate, and while I have shown the preferred form of my invention, it is to beunderstood that various changes may be made in its construction'by those skilled in the art without departing from the spirit of the invention as defined in the appended claims.

Having. thus described my invention, what I claim and desire to secure by Letters Patent is:

w 1. A brooder hover comprising a shell forming a heating chamber, a

frusto-conical hood supportedby saidshell and overlying the heating chamber, the upper end of the hood being closed, the base of the hood being open, said hood being arrangedconcentrically of the shell, the periphery of the base of the hood being considerably larger in diameter than the transverse dimension of the shell, the upper end of the hood being spaced above the heating chamber whereby heated air from the heating chamber will be directed downwardly through the space between the .periphery of the hood at the base thereof andthe shell, and bafile means arranged intermediate the hood and the shell forming a plurality of annular air passageways therebetween through which the heated air will be directed, said passageways terminating at the base of the hood so asto distribute the air through the space between the periphery of the hood at the base and the shell.

2. A brooder hover comprising a shell forming a heating chamber, a frusto-conical hood supported by said shell and overlying theheating chamber, the upper end of the hood being closed, the base of the hood being open, said hood being arranged concentrically of the shell, the periphery of the base of the hood being considerably largerin diameterthan thet'ransv'erse dimension of the shell, the upper end of the hood being spaced above the heating chamber whereby heated air from the heating chamber will be di rected downwardly through the space between the periphery of the hood at the base thereof and the shell, and a plurality of open-ended frustoconical partition members of progressively decreasingdiameters arranged intermediate the hood and shell and rigidly supported thereby and arranged with their bases disposed on the same plane as the base of the'hood, the upper ends of the partition members terminating short of the top of the hood whereby to form a plurality of annular air passageways between the hood and the shell to direct the "heated air downwardly through the base of the hood and distribute the same over the area between the periphery of the hood at the base thereof and the shell.

3. A brooder hover comprising a central shell forming a heating chamber, me'ans for supporting the same in a vertical position, a frusto-conical hood overlying the open upper endof the shell and supported thereby in concentric relation thereto, the upper end of the hood being closed, the base of thehood being open, the base of the hood being'spaced vertically from the supporting means 'of the shell whereby chicks may hover beneath the hood, a plurality of open-ended frusto-conical partition members arranged within the space between the hood and shell, said partition 'members being of different dimensions whereby to provide a plurality of similar annular air passages in the space between the hood and the shell whereby heated air from the heating chamber will rise in the hood and be directed downwardly through the base of the hood through said air passages, the bases of said pa'rtition members lying in the same plane as the base of the=hood whereby to direct the air over the area between the periphery of the hood at its base and the shell, and annularfianges at the base of the hood and the bases of the partitions, said flanges depending in order to direct the air passing throughsaid air passages in a downward direction. 7

4. A brooder hover comprisinga central shell forming a heating chamber, means for supporting the's'ame in a vertical position, a frusto-conical hood overlying the open" upper end of the shell and supported thereby in concentric relation thereto, the upper end of the hood being closed,

the base of the hood being open, the base of the hover beneath the hood, a plurality of openmembers lying in the same plane as the base of the hood whereby to direct the air over the area between the periphery of the hood at its base and the shell, and bafiie means forming an air passage around the shell and for directing heated air into the space between the periphery of the innermost partition and the shell, said hood and partition members being formed with depending annular flanges at their bases to direct the currents of air passing through said passages directly downward at the base of the hood. n

5. A brooder hover comprising a central shell forming a heating chamber, means for supporting the same in a vertical position, a frusto-conical hood overlying the open upper end of the shell and supported thereby in concentric relation thereto, the upper end of the hood being closed, the base of thehood being open, the base of the hood being spaced vertically from the supporting means of the shellwhereby chicksmay ended frusto-conicalpartition members arranged within the space between the hood and shell, said partition members being of different dimensions whereby to provide a plurality of similar annular air passages in the space between the hood and the shell whereby heated air from the heating chamber will rise in the hood and be directed downwardly through the ,base of the hood through said air passages, the bases of said partitionmembers-lying in the same plane as the base of the hood whereby to direct the air over the area between the periphery of the hood at its base and the shell, baflie means within the topof the hood for directing the heated air downwardly through said passages, and annular depending flanges at the bases of the hood and par L titions to direct the air straight downwardly at the base of thehood.

PERCY M. FORS'I'ER. r 20 

